The principle and method of probability analysis of slope failures are discussed . the probability analysis of yudonghe landslide is exemplified . and the stability function used this slope is also performed 综述了边坡破坏概率分析的基本原理和实施方法,以渔洞河滑坡为例,进行了滑坡体的破坏概率分析,并以此为基础建立了边坡稳定预测方程。